Optimization of Ultrasonic Assisted Extraction Process on Antioxidant Activity of Honje Fruit Extract (Etlingera elatior) Using Surface Response Method. Jurnal Kimia Valensi, [S. l.], v. 7, n. 2, p. 118–128, 2021. DOI: 10.15408/jkv.v7i2.21396. Disponível em: https://journal.uinjkt.ac.id/valensi/article/view/21396. Acesso em: 28 nov. 2025.